Many years ago A mate bought round a then new SBIG7 I think it was, to try on my scope, heres the results
http://cust.idl.net.au/josiah/SBIG.htm
back then he software was DOS based, but surprisingly easy to use. Focussing was a breeze using a Heartman mask, draw a box round a star and the camera will just keep sending small images with that star in the centre, and highly magnified, so focussing is done in real time.
I cant remember how we did the darks, I think we just took a dark and set the software to automatically subtract it from the light images then and there. I only had one night with it on my scope,would loved to have had more.
Scott